Difference between revisions of "August 13, 2006"

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=Another New Concentric Crater?=
 
=Another New Concentric Crater?=
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<p>[[File:CCnearCassini-LPOD.jpg|CCnearCassini-LPOD.jpg]]<br />
 
<p>[[File:CCnearCassini-LPOD.jpg|CCnearCassini-LPOD.jpg]]<br />
 
<i>images from [mailto:mwirths@superaje.com Mike Wirths], Lunar Orbiter IV and Clementine</i></p>
 
<i>images from [mailto:mwirths@superaje.com Mike Wirths], Lunar Orbiter IV and Clementine</i></p>
<p>In [http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?1978LPI.....9.1264W 1978] I searched all the Lunar Orbiter IV images and discovered most of the known concentric craters (CC). Recently I noticed another [http://www.lpod.org/?m=20060802 one] on a SMART-1 image, and here is yet another previously unknown CC. This one was noticed on Mike Wirths&#8217; spectacular [http://www.lpod.org/?m=20060319 mosaic] of the rubbly area along the backside of the Alpes beyond Cassini. The CC occurs on thin debris from the Imbrium impact adjacent to smooth areas of lava near the craters Cassini E and D. In the discovery image the inner ring looks like a typical, but subdued CC donut. With the high resolution of Lunar Orbiter IV and Clementine the ring seems progressively more like mounds than a donut. And the narrow rille best seen in the Clementine view cuts through the floor of the CC. I think that this feature is a CC and hope that lower Sun angles from future releases of SMART-1 images will confirm it. The CC is about 7 km wide - perhaps it can be revealingly captured on large scale, high resolution amateur images.</p>
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<p>In [http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?1978LPI.....9.1264W 1978] I searched all the Lunar Orbiter IV images and discovered most of the known concentric craters (CC). Recently I noticed another [[August_2,_2006|one]] on a SMART-1 image, and here is yet another previously unknown CC. This one was noticed on Mike Wirths&#8217; spectacular [[March_19,_2006|mosaic]] of the rubbly area along the backside of the Alpes beyond Cassini. The CC occurs on thin debris from the Imbrium impact adjacent to smooth areas of lava near the craters Cassini E and D. In the discovery image the inner ring looks like a typical, but subdued CC donut. With the high resolution of Lunar Orbiter IV and Clementine the ring seems progressively more like mounds than a donut. And the narrow rille best seen in the Clementine view cuts through the floor of the CC. I think that this feature is a CC and hope that lower Sun angles from future releases of SMART-1 images will confirm it. The CC is about 7 km wide - perhaps it can be revealingly captured on large scale, high resolution amateur images.</p>
 
<p>[mailto:tychocrater@yahoo.com Chuck Wood]</p>
 
<p>[mailto:tychocrater@yahoo.com Chuck Wood]</p>
 
<p><strong>Technical Details:</strong><br />
 
<p><strong>Technical Details:</strong><br />
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<p><b>Yesterday's LPOD:</b> [[August 12, 2006|Rima Weird]] </p>
 
<p><b>Yesterday's LPOD:</b> [[August 12, 2006|Rima Weird]] </p>
 
<p><b>Tomorrow's LPOD:</b> [[August 14, 2006|A Bend in the Middle]] </p>
 
<p><b>Tomorrow's LPOD:</b> [[August 14, 2006|A Bend in the Middle]] </p>
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Latest revision as of 16:51, 22 March 2015

Another New Concentric Crater?

CCnearCassini-LPOD.jpg
images from Mike Wirths, Lunar Orbiter IV and Clementine

In 1978 I searched all the Lunar Orbiter IV images and discovered most of the known concentric craters (CC). Recently I noticed another one on a SMART-1 image, and here is yet another previously unknown CC. This one was noticed on Mike Wirths’ spectacular mosaic of the rubbly area along the backside of the Alpes beyond Cassini. The CC occurs on thin debris from the Imbrium impact adjacent to smooth areas of lava near the craters Cassini E and D. In the discovery image the inner ring looks like a typical, but subdued CC donut. With the high resolution of Lunar Orbiter IV and Clementine the ring seems progressively more like mounds than a donut. And the narrow rille best seen in the Clementine view cuts through the floor of the CC. I think that this feature is a CC and hope that lower Sun angles from future releases of SMART-1 images will confirm it. The CC is about 7 km wide - perhaps it can be revealingly captured on large scale, high resolution amateur images.

Chuck Wood

Technical Details:
Mike’s image: March 7, 2006. 18″ Starmaster + camera Lumenera Infinity 2-2 + 2.5X Powermate barlow + red filter.

Related Links:
Rükl charts 12 & 13

Yesterday's LPOD: Rima Weird

Tomorrow's LPOD: A Bend in the Middle


COMMENTS?

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